The key to the author's Mercurius triumphans, first published in 1600. Mercurius triumphans was first published at Magdeburg, 1599, and issued in an enlarged ed. the following year. The 5 sections of the present work correspond to the 5 books of the 1599 ed
Dedication to Rudolph II signed M.C.M.D. ... (i.e. Martinus Copus medicinae doctor)
Woodcut coat of arms of the Copi de Calvis family at H1v
Includes 2 poems: Ad familiae Coporvm de Calvis insignia, H2r. Paraeneticvm ad ... Martinvm Copvm... : carmen Henrici Bolschenii, H2v-I4v
Woodcut printer's device of crowned salamander in flames, as in Mercurius triumphans, repeated on final page with different Latin motto. Cf. Ferguson. Initial, headpieces of printers' ornaments, tailpieces
Hogart, R. Alchemy
Ferguson, J. Bib. chemica
No table of contents. Foxing. No page numbers. Narrow margins.